Avalanche forecast

Northern San Juan

Colorado Avalanche Information Center
View on map

Avalanche danger

Wed
Thu
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
1 · Low
Out of date — this forecast expired 4 years ago. You’re viewing past conditions, not the current bulletin.

Avalanche problems

  • Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1.5–2.5
  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2

Avalanche Summary

You are most likely to trigger a dangerous avalanche on upper-elevation slopes facing northwest through north to east where wind-drifted snow forms a stiff surface layer. Avoid slopes with evidence of recent wind-drifting, such as fresh cornice growth, smooth, lens-like pillows, or sculpted features. Retreat to more wind-sheltered slopes or less-steep terrain if you experience cracking in the surface snow. Below-treeline areas and slopes less than about thirty degrees provide safer options.

Regions covered